The Emerald City of Oz

With their farm now in the hands of the bank, Dorothy, Uncle Henry and Aunt Em have decided to live in the Emerald City forevermore, and set out to explore the magical Land of Oz in the company of Dorothy's most beloved friends. But when news of an evil invasion reaches their ears, they must rush back to Ozma's side and face certain destruction together. Is this the end for our heroes?
Book 6 of the 15 book series by L. Frank Baum. Journey through the magical world of Oz with Dorothy and friends with these beloved timeless classics.

Lyman Frank Baum was an American author best known for his children's books. Born in New York state, he was involved in writing and theatre all his life.